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  1. #1

    Riva Sponson fit problem

    I got some Riva sponsons the other day and they dont fit but they say they r supposed to. Studs come out of the backing plate to far to mount fin. Anyone installed these or had this problem?

    Studs


    Studs sticking out of backing plate.


    Anyone got any ideas?


  2. #2
    L Carlson's Avatar
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    Their was a recall on the factory sponsons. They made the ski chime walk. Yamaha sent out a backing plate for free with new sponsons. Contact Yamaha and see if they have any left. This was a problem with the 99 and 00's If I remember correctly. You could also cut the extra length off the bolt, put a nut on the bolt before you cut the bolt. Lee

  3. #3

  4. #4

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    Remove studs - use bolts.

    Eric

  5. #5
    XL1200Ltd-Keith's Avatar
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    My Beach House Sponsons bolted right up on my 2000, notice the 1-1/8" thick backing plates.
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  6. #6
    XL1200Ltd-Keith's Avatar
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    See post number 8, I finally found a picture of the complete set of sponsons.
    Last edited by XL1200Ltd-Keith; 03-10-2010 at 05:52 PM.

  7. #7
    L Carlson's Avatar
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    Quote Originally Posted by XL1200Ltd-Keith View Post
    I think that your solution is to cut the studs down to fit the backing plate, and attach with Stainless Steel Washers and Stainless Steel Nylock Nuts as Lee said. Make sure that they are short of flush so that they do not contact the sponson blade.
    +1

  8. #8
    XL1200Ltd-Keith's Avatar
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    After seeing StLouisRamsfan's sponsons, I see that the Riva's require the backing plate. I would not risk injury by running them without the backing plates.
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  9. #9
    Thanks Keith! Exactly the proof I needed. After being called every name in the book by fellow members and deleted posts. I was sold the sponsons without all the parts.

  10. #10
    If your not doing something, its hard to screw up. stlouisramsfan's Avatar
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    Good looking ski!

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